DK432782A - APPARATUS AND PROCEDURE FOR MANUFACTURING THIN WEIGHTED WAX MODELS FOR PRECISION - Google Patents

APPARATUS AND PROCEDURE FOR MANUFACTURING THIN WEIGHTED WAX MODELS FOR PRECISION Download PDF

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Publication number
DK432782A
DK432782A DK432782A DK432782A DK432782A DK 432782 A DK432782 A DK 432782A DK 432782 A DK432782 A DK 432782A DK 432782 A DK432782 A DK 432782A DK 432782 A DK432782 A DK 432782A
Authority
DK
Denmark
Prior art keywords
wax model
core
wax
abruptly
weighted
Prior art date
Application number
DK432782A
Other languages
Danish (da)
Inventor
Manfred Brugger
Peter Vogt
Original Assignee
Bbc Brown Boveri & Cie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of DK432782A publication Critical patent/DK432782A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/24—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 characterised by the choice of material
    • B29C67/241—Moulding wax
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • B29C33/22—Opening, closing or clamping by rectilinear movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

In order to remove a thin-walled wax model adhering to the walls of a first core piece and a second core piece, after solidifying, from a multi-part device for making thin-walled wax models, without damaging the wax model, after the external pressure is released, a mold-opening moment is generated simultaneously and abruptly in axially opposite directions by spring-loaded push-off bolts or directly by leaf springs in the upper parting faces and lower parting faces of the device. As a result, both the lower closing plate and the upper closing plate are separated from the annular casing and the wax model is separated from the core pieces, by a maximum of 3 mm, axially in opposite directions because the adhesion of the wax model to the walls of the core arrangements is overcome simultaneously and abruptly. Subsequently the two core arrangements and the casing are transported away from one another in an axial direction relative to one another, so that the wax model is freed.
DK432782A 1981-10-01 1982-09-29 APPARATUS AND PROCEDURE FOR MANUFACTURING THIN WEIGHTED WAX MODELS FOR PRECISION DK432782A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH632681 1981-10-01

Publications (1)

Publication Number Publication Date
DK432782A true DK432782A (en) 1983-04-02

Family

ID=4307787

Family Applications (1)

Application Number Title Priority Date Filing Date
DK432782A DK432782A (en) 1981-10-01 1982-09-29 APPARATUS AND PROCEDURE FOR MANUFACTURING THIN WEIGHTED WAX MODELS FOR PRECISION

Country Status (6)

Country Link
US (1) US4539168A (en)
EP (1) EP0076531B1 (en)
JP (1) JPS5868450A (en)
AT (1) ATE9295T1 (en)
DE (1) DE3260732D1 (en)
DK (1) DK432782A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1179524B (en) * 1984-12-21 1987-09-16 Pirelli DOUBLE MOLD VULCANIZATION PRESS
US4927347A (en) * 1988-10-11 1990-05-22 Motor Wheel Corporation Compression mold for fiber-reinforced composite wheels
EP1092521B1 (en) * 1999-08-20 2003-08-20 Erwin Wimmer Mould for injection or pressure moulding machine

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US658680A (en) * 1900-03-15 1900-09-25 John C Scheufler Machine for making crayons.
GB191107875A (en) * 1911-03-29 1911-07-27 Frans Justinus Nilsson Method of and Apparatus for Manufacturing Radiators, Sectional Boilers, and the like.
US1427149A (en) * 1919-11-17 1922-08-29 Walter G Cook Artificial comb and the art of producing the same
US2057540A (en) * 1928-11-15 1936-10-13 Plastic Res And Engineering Co Machine for molding candles
US2135803A (en) * 1935-12-16 1938-11-08 Johnson Lab Inc Method of and means for molding plastic materials which do not flow easily
GB705314A (en) * 1951-09-07 1954-03-10 Alfa Plastics Ltd Improvements in and relating to the manufacture of cotton and like reels
CH343121A (en) * 1956-05-30 1959-12-15 Herrmann Ernst Process for the production of bottle closures from plastic, system for carrying out the process and closure produced according to the process
US3004291A (en) * 1958-01-14 1961-10-17 Eric Dent Apparatus for forming brushes
DE1173732B (en) * 1960-06-08 1964-07-09 Gen Motors Corp Cast turbine blade
US3145423A (en) * 1961-09-25 1964-08-25 Prec Associates Inc Air-releasing mold
US3271491A (en) * 1962-01-23 1966-09-06 Mikkelborg Gunnar Method of preparing within a mold of rubber or of a material having similar properties shapes of wax or similar materials for use in the so-called lostwax-molding method
FR1526950A (en) * 1966-12-12 1968-05-31 Process for the manufacture of smooth plastic parts, injection mold for implementing said process, and parts thus obtained
US3673302A (en) * 1967-01-09 1972-06-27 Globe Union Inc Method for fabricating battery cases
US3591898A (en) * 1969-09-22 1971-07-13 Herter Inc S Molding of all-plastic shot shell cases
DE2202061A1 (en) * 1972-01-17 1973-07-26 Hasel Heinz Dr Rer Nat Dipl Ph Toy-brick moulding unit - for mass prodn from thermoplastics combining injection and press moulding units for producing coupling
US3805875A (en) * 1972-06-16 1974-04-23 Precision Metalsmiths Inc Injection apparatus
US3930780A (en) * 1973-07-20 1976-01-06 Beatrice Foods Co. Injection molding apparatus for partitioned containers
DE2634152C3 (en) * 1976-07-29 1979-04-19 Johannes 8641 Neuses Wuendsch Casting mold for castings with a thread to be formed

Also Published As

Publication number Publication date
US4539168A (en) 1985-09-03
EP0076531B1 (en) 1984-09-12
JPS6342533B2 (en) 1988-08-24
DE3260732D1 (en) 1984-10-18
JPS5868450A (en) 1983-04-23
EP0076531A1 (en) 1983-04-13
ATE9295T1 (en) 1984-09-15

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment